Disentangling the multiwavelength picture of the VHE gamma-ray emission in W28

Details Disentangling the multiwavelength picture of the VHE gamma-ray emission in W28 Disentangling the multiwavelength picture of the VHE gamma-ray emission in W28

Oct 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006xmm..prop..149f&link_type=abstract

XMM-Newton Proposal ID #05038501

Computer Science

Supernovae, Supernova Remnants, Diffuse (Galactic) Emission And Isolated Neutron Stars, W28A2 West, Xmm-Newton Proposal 05038501

Scientific paper

H.E.S.S. observations (2004-2006) have revealed extended VHE gamma-ray emission in several parts of the W28 complex, hosting the Supernova remnant (SNR) G6.4-0.1. The strongest gamma-ray emission is however located in a region outside of the SNR boundary towards the South of W28. We propose XMM-Newton observations (60 ks in 2x30 ks pointings) of this southern gamma-ray source for which, at present, no dedicated coverage at X-ray energies exists. A potential counterpart for this VHE gamma-ray source is the ultra-compact HII region W28A2, exhibiting a powerful bipolar molecular outflow and being a bright radio and IR source. With the X-ray data, we will be able to test this hypothesis, and also to unveil the role that the relatively old SNR G6.4-0.1 plays in this part of the unique W28 complex.

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